Device for fuel-saving stoves.



APPLICATION FILED MAY 1, 1911.

Patented Aug. 6, 1912.

. INVENTOR 19W W WITNESSES His \Horney,

COLUMBIA PLANOGRAPH C0.,WAsmNuTON, n. c.

UNITED STATES PATENT OFFIQE.

CHARLES W. HUGY, OF SAN JOSE, CALIFORNIA.

DEVICE FOR FUEL-SAVING- STOVES.

To all whom it may concern:

Be it known that I, CHARLES W. HUGY, a citizen of the United States, residing at San Jose, in the county of Santa Clara and State of California, have invented a new and useful Improvement in Devices for Fuel-Saving Stoves; and I hereby declare the following to be a full, clear, and exact description of the same, of which the following is a specification.

My invention relates to an improvement in a device for fuel saving stoves which is especially designed for the purpose of saving fuel for heating, cooking or for any other purpose where heat is required.

To this end my invention consists of certain features of construction and combina tion of parts, as will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure 1 is a sectional elevation of a heating stove on lines AA Fig. 2 showing inside construction of my device. Fig. 2 is a plan view of a heating stove on lines BB, Fig. 1 showing the construction plan of my device. Fig. 3 is a detail view of inner plate. Fig. 4 is a detail view of front plate of fuel chamber.

In the present case I have shown my improvement in a device for fuel saving stoves consisting of an oblong cast iron stove as shown at 1, Figs. 1-2. The front portion of the stove constitutes the radiating chamber 18, and the rear portion the fuel chamber 20. The lower plate 3 constitutes the bottom of the fuel chamber and extends a,

distance forward under the flue 2 which forms the combustion chamber 18, and extends a like distance, on either side of said fiue, within the radiating chamber 18 There is an opening within plate 3 covered by grate 10. Below grate 10 and fuel chamber 20 is the ash pit 21, with a door 14: opening therein through which ashes are removed. Door 14 is provided with a draft slide is through which air is admitted. Partition 9 forms the wall between the ash pit and the radiating chamber 183 and is also a support for the parts resting thereon. The top plate 5 serves as a crown sheet for the fuel chamber 20, and is situated a dis- Speeification of Letters Patent.

Application filed May 1, 1911.

Patented Aug. 6, 1912.

Serial No. 624,349.

tance below the top of the stove, and the space therebetween constitutes a. passageway 18 leading from the radiating chamber 18 to outlet 19. Door 13 is for the purpose of supplying fuel to fuel chamber 20. Leading from the ash pit 21, and extending upward at the back of the stove, and terminating a distance below the top plate 5, the back air tube 16 islocated. Back lining a is the inner wall of the back air tube 16, and also forms a fire protection for the back of the stove. It is connected at the bottom to plate 3, and is held rigidly in place by ribs 17. Inner plate 2 is an inner wall for the radiating chamber 18. The upper end of this plate is attached to top plate 5, as shown at Fig. 1. There is a flue cast in plate 2 in the center thereof, ex tending the full length of the same, as shown at Fig. 1. The inner wall of the fuel chamber 20 is formed by plate 6, and on either side thereof by plate 2. Inner plate 6 terminates at the top a distance below the top plate 5, leaving an air passageway therebetween, and at the bottom slightly below the top of combustion chamber 18. It also forms one of the walls of front air tube 15. Plate 9. is provided with lugs 7, and plate 6 with arms 8, and the two plates are attached together by passing the arms behind the lugs, and the flue cast in plate 2, heretofore described, is in this manner properly walled in and forms front air tube 15. Inner plate 6 increases in thickness from the top to the bottom, and is bent at the bottom within air tube 15, as shown at Fig. 1, for the purpose of deflecting the draft into the combustion chamber 18, and the heat from said chamber int-o the radiating chamber 18. The combustion chamber 18 is formed by a fine 2 cast to inner plate 2 near the bottom thereof, and when in place it extends longitudinally within the radiating chamber 18 a distance, and opens fro-m the fuel chamber 20 into the radiating chamber 18*. The front door with a slide therein is shown at 12, and is for the purpose of giving access to the front of the stove, and the slide therein is to check the fire when required. There is a lift 11 within door 12, and at the upper portion of the same, which exposes the fire to view, ventilates the room, and gives a ready access to the fire to stir the same. The air passing in at draft slide or door 14 to ash pit 21, thence to grate 10 a portion going up back air tube 16 and across fuel chamber 20, and down front air tube 15 carrying with it all smoke and gases arising to the top of fuel chamber 20, to combustion chamber 18 where the same comes in contact with the burning fuel and oxygen arising through grate 10. By the uniting of these two drafts, the upper and lower, in the combustion chamber 18, a compromise is efiected whereby the draft is carried straight out to the radiating chamber 18 thence on to outlet 19. The bend made on the lower end of plate 6 gives an outward tendency to the draft coming down air tube 15 thus easily effecting a compromise be tween the upper and lower drafts as shown in Fig. 1.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is as follows:

1. The combination in a stove having an ash-pit, a grate, a fuel chamber immediately thereover, said fuel chamber being covered at the top within said stove, a radiating chamber extending from the bottom to the top thereof, an outlet, and communicating means from the radiating chamber to said outlet, 21 back air tube Within said fuel chamber leading from the ash-pit to the upper portion of the fuel chamber; of two inner plates separating the fuel chamber and the radiating chamber above the grate, one of said plates being shorter than the other both at the top and the bottom and increasing in thickness on the side toward the radiating chamber from the top to the bottom and terminating with a bend toward the radiating chamber, the longer plate being shaped to form a vertical air tube when said plates are fitted together, a longitudinal flue, fo ming a combustion chamber, attached to the longer plate, at the bottom thereof, opening at a point below said shorter plate from the fuel chamber, and. extending into said radiating chamber a distance and opening therein, and a partition plate separating the radiating chamber and the ash-pit.

2. A stove having two inner plates with an air tube therebetween, said plates separating a fuel chamber and a radiating chamber, said tube leading from the upper portion of the fuel chamber downward and opening into the radiating chamber, one of said plates being shorter than the other and bent at the bottom within said air tube toward said radiating chamber, a longitudinal flue, forming a combustion chamber, attached to the longer plate at the bottom thereof leading from the fuel chamber and extending into the radiating chamber a dis tance and opening therein, a lower plate with a grate therein at the bottom of the fuel chamber, an ash-pit thereunder, an air tube within said fuel chamber at the rear thereof, said tube leading from said ash-pit and terminating a distance below the top of the fuel chamber, an outlet, and communicating means from the radiating chamber to said outlet.

3. A stove having a radiating chamber and a fuel chamber separated by two inner plates, one of said plates being shorter than the other and bent at the bottom toward the radiating chamber, a longitudinal flue, forming a combustion chamber, attach d to the longer plate at the bottom thereof and leading from the fuel chamber and opening into the radiating chamber, a lower plate with a grate therein at the bottom of the fuel chamber, an ash pit thereunder, an air tube within said fuel chamber at the rear thereof, said tube leading from said ash pit and terminating a distance below the top plate which forms the top of the fuel chamber, a second air tube between said two inner plates leading from the top of the fuel chamber down ward and opening at a. point near the top of said combustion chamber, an outlet, and communicating means from the radiating chamber to said outlet.

e. A stove having a radiating chamber extending from the top to the bottom in the front portion thereof, a fuel chamber rearwardly from said radiating chamber, a grate in the lower portion of the fuel chamber, means of admitting air from below said grate, a back air tube in the fuel chamber leading from below the same to a point a distance below the top thereof, a front air tube extending downward between the radiating chamber and the fuel chamber leading from a point a distance below the top of the fuel chamber, a combustion chamber, beneath the lower end of said tube, leading from the lower portion of said fuel chamber longitudinally into said radiating chamber, means of deflecting the draft from said front tube into the combustion chamber, an outlet, and communicating means from the radiating chamber to said outlet.

5. In a stove, the combination of a fuel chamber and a radiating chamber separated by a plate, a vertical air tube within said plate, a longitudinal flue, forming a combustion chamber, cast at the bottom of said plate opening from the fuel chamber and extending a distance within the radiating chamber, a second plate, shorter than the first plate, covering said vertical air tube, forming a wall thereof, and leaving an air passageway from the fuel chamber at the top thereof, said second plate being bent at the lower portion thereof for the purpose of deflecting the draft within said combustion chamber, a second air tube in the rear of the fuel chamber leading from beneath said chamber to a point a distance from the top thereof, an outlet, and communicating means from the radiating chamber to said outlet.

6. The combination in a stove having a radiating chamber, a fuel chamber, and a combustion chamber leading from the fuel chamber to the radiating chamber; of an inner plate attached therein forming the wall between the radiating chamber and the fuel chamber, a second plate attached to the side of the first plate within the fuel chamber, said first plate being provided with a vertical air tube covered by said second plate, said second plate being shorter than the first plate, leaving an air passageway into said air tube at the to thereof, and terminating at the bottom with a bend for the purpose of deflecting the air and gases passing through said air tube into the combustion chamber, an outlet, and communicating means from the radiating chamber to said outlet.

In testimony whereof, I have hereunto set my hand this 24th day of April, 1911. CHARLES W. HUGY. Witnesses:

E. CozzENs, J, B. CAMBERs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

